Make meta_conv try more case due to broadcasting problems

theano/gof/opt.py

@@ -856,8 +856,10 @@ class LocalMetaOptimizer(LocalOptimizer):
                 pass
             elif hasattr(input.tag, 'test_value'):
                 givens[input] = theano.shared(
-                        input.type.filter(input.tag.test_value),
-                        input.name, borrow=True)
+                    input.type.filter(input.tag.test_value),
+                    input.name,
+                    broadcastable=input.broadcastable,
+                    borrow=True)
             else:
                 missing.add(input)
         if missing:

theano/sandbox/cuda/opt.py

@@ -1411,9 +1411,11 @@ class ConvMetaOptimizer(LocalCudaMetaOptimizer):
 # TODO: Use var.type.filter when cuda_ndarray.filter supports non-strict casts
 #                        var.type.filter(numpy.random.randn(*shape),
 #                                        allow_downcast=True),
-                        numpy.require(numpy.random.randn(*shape),
-                                      dtype=var.dtype),
-                        var.name, borrow=True)
+                    numpy.require(numpy.random.randn(*shape),
+                                  dtype=var.dtype),
+                    var.name,
+                    broadcastable=var.broadcastable,
+                    borrow=True)
         # return mapping
         return result